Space vs. Time: Showing Change

literal                                         abstract
<--------------------------------------->
time for time                        space for time

animation: show time using temporal change
good
show process	
compare two things by blinking
bad
directly compare between many things
intermediate frames "overload mental buffer"
  
[www.geom.uiuc.edu/docs/outreach/oi/evert.mpg]   [www.astroshow.com/ccdpho/pluto.gif]




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